Earlier this week shoppers at Mall of America were surprised when a flash mob took over the Best Buy rotunda and danced to “Jailhouse Rock” to celebrate the opening of “All Shook Up” at Chanhassen Dinner Theatres. The dance featured more than 200 performers, both amateur and professional, ranging in age (according to CDT) from 7 to 70. All Shook Up runs through January 2011.